[USRP-users] Problem burning image to SD card for E312
Mann, John - 0662 - MITLL
mannj at ll.mit.edu
Thu Nov 16 17:24:41 EST 2017
I tried issuing a sync command after the dd command - no help.
I also tried using bmaptool to burn the image. It still doesn’t work. And it still took around 10 minutes - no faster than dd.
Both commands finish without any error messages.
The image file's md5 checksum is correct, so the image did not get corrupted during the download.
I have even tried 2 different SD cards.
I'm running out of ideas... should I try a different host computer? Any way to do this from Windows 7 or Windows 10?
From: Philip Balister [mailto:philip at balister.org]
Sent: Thursday, November 16, 2017 4:43 PM
To: Anon Lister <listeranon at gmail.com>
Cc: Mann, John - 0662 - MITLL <mannj at ll.mit.edu>; usrp-users <usrp-users at lists.ettus.com>
Subject: Re: [USRP-users] Problem burning image to SD card for E312
On 11/16/2017 04:37 PM, Anon Lister wrote:
> Make sure to run sync after to dd.
Interesting, I thought dd would run below the buffer cache layer.
> Also curious as to reason for the recommendation against dd?
bmaptool is faster. bmaptool also checks to see if the device has a mounted file system, so prevent you form overwriting something like /dev/sda. Basically, safer and faster.
> On Nov 16, 2017 12:35 PM, "Philip Balister via USRP-users" <
> usrp-users at lists.ettus.com> wrote:
>> Try bmaptool. dd is a bad idea, yeah I killed my hard drive once.
>> The might even be package with Ubuntu. After writing, re-insert the
>> card in the writer and see if it mounts the partitions.
>> On 11/16/2017 10:54 AM, Mann, John - 0662 - MITLL via USRP-users wrote:
>>> Running Ubuntu 16 on my host computer...
>>> I downloaded the image from:
>>> Then I decompressed the xz file using xzdec:
>>> xzdec sdimage-gnuradio-dev.direct.xz >> sdimage-gnuradio-dev.direct
>>> And burned the sd image using the dd command:
>>> sudo dd if=sdimage-gnuradio-dev.direct of=/dev/sdb1 bs=1M
>>> The dd command apparently finishes without error after about 10
>> and I can see flashing lights on the SD card USB adapter, so I'm
>> pretty sure it is getting written to the correct place.
>>> But the card does not work in the E312. When I turn it on, the 4
>> next to the Tx/Rx ports light up, but there is no activity on the
>> console window. I have another SD card that boots up fine, so I know
>> the E312 is fine. There is clearly something wrong with the SD card.
>> When I plug the old working card into my Ubuntu host machine, I can
>> actually see the files on the card. When I plug the newly burned
>> card back into the Ubuntu machine, I see nothing.
>>> Any idea what I am doing wrong?
>>> John Mann
>>> MIT Lincoln Laboratory
>>> USRP-users mailing list
>>> USRP-users at lists.ettus.com
>> USRP-users mailing list
>> USRP-users at lists.ettus.com
More information about the USRP-users